Orchid Root Rot — How to Save Your Orchid Step by Step

How to identify and treat root rot in orchids. Save your Phalaenopsis, Dendrobium, or Cattleya by removing dead roots and repotting correctly. This guide covers everything you need to know about this topic, including common causes, step-by-step solutions, and answers to frequently asked questions.

Here are the key things to understand: Healthy orchid roots are firm, plump, and green (when wet) or silvery-white (when dry). Rotted roots are brown, mushy, hollow, and often smell sour when squeezed. Root rot is caused by overwatering, decomposed potting medium, or lack of drainage. An orchid can survive losing up to 70-80% of its roots if treated properly and given recovery conditions. Bark-based orchid media decomposes over 1-2 years, retaining too much water and suffocating roots. Understanding these fundamentals will help you diagnose and resolve this issue more effectively.

The most common reasons this occurs include: Overwatering — watering too frequently before the medium dries is the number one cause. Decomposed potting medium — old bark breaks down into mush that stays constantly wet. No drainage hole — decorative pots without holes trap water and drown roots. Ice cube watering myth — ice can freeze and damage roots, promoting rot entry points. Identifying the root cause is the first step toward finding the right solution.

To resolve this, follow these recommended steps: Unpot the orchid and remove all old potting medium from the roots — soak briefly if medium is stuck. Examine every root: firm and white/green = keep; brown, mushy, or hollow = cut off with sterile scissors. Cut rotten roots back to firm healthy tissue — do not leave any mushy portions attached. Dust all cut surfaces with cinnamon powder (natural antifungal) and let cuts air-dry for 2-4 hours. Repot in fresh orchid bark in a pot with drainage holes — water sparingly for 2-3 weeks while roots recover. If these steps do not resolve the issue, consider consulting additional resources or a qualified professional.

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